k.fonseca

TL2 Moderator · Valencia

Contributes reviews on supplier material. Based in Valencia.

Joined 16 November 2024 · last posted 4d

98 posts, newest first. Showing up to 150.

How to ask a question when you cannot say why you are asking it Replied, post #50 · Start Here › How to Ask · 24 Jul 2026 · 13 likes Coming back to post #48, because the follow-up matters more than the original answer. The specific question in the title is more useful than you might think. A title…
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #113 · Sourcing › Independent verification · 22 Jul 2026 · 25 likes Janoshik Analytical: chromatographic purity and mass-spectrometric identity on submitted samples. Reports are issued with the analytical method stated and a…
Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #68 · Evidence › Journal club · 15 Jul 2026 · 13 likes Coming back to post #66, because the follow-up matters more than the original answer. FLOW (N Engl J Med 2024): Semaglutide renal outcomes in type 2 diabetes and…
Osteoarthritis and mechanical versus metabolic improvement — one year on Replied, post #40 · Clinical › Comorbidities · 12 Jul 2026 · 0 likes Cardiovascular disease: several compounds have cardiovascular outcome trials. SELECT was in people without diabetes; SUSTAIN 6 was in high-risk diabetes. Absolute…
Comparing my trajectory with the trial curves, carefully — a second dataset Replied, post #72 · Outcomes › Progress reports · 8 Jul 2026 · 12 likes On post #68 — agreed on the reasoning, with one qualification. Exercise volume changes: increasing exercise intensity or duration can mask weight loss (muscle gain) on…
Second pass at: Cagrilintide molecular characteristics and analytical considerations Replied, post #5 · Compounds › Cagrilintide & amylin analogues · 7 Jul 2026 · 0 likes Historical amylin analogues: pramlintide was the only long-acting amylin analogue licensed for some time and its poor adherence was a known limitation. A weekly…
GIP receptor agonism and the argument about direction — does this still hold? Replied, post #7 · marked as the solution · Pharmacology › Receptor biology · 6 Jul 2026 · 23 likes GIP receptor signalling: the glucose-dependent insulinotropic peptide receptor (GIP) is involved in glucose-stimulated insulin secretion. GIP agonism is thought to…
Journal club: indirect comparison between two programmes, defended and attacked Replied, post #108 · Evidence › Journal club · 6 Jul 2026 · 0 likes Coming back to post #106, because the follow-up matters more than the original answer. SURMOUNT-OSA (N Engl J Med 2024): Tirzepatide in obstructive sleep apnoea, using…
Why a glucagon receptor agonist in a weight-loss compound is not a contradiction Replied, post #13 · Compounds › Retatrutide · 24 Jun 2026 · 33 likes What we do not know about retatrutide, listed explicitly: long-term safety, real-world response rates, the dose response in diverse populations, whether the heart-rate…
Research-use-only status: what it means legally and practically Replied, post #62 · Compounds › Other compounds · 21 Jun 2026 · 0 likes post #61 answers the question as asked. The question underneath it is different. I disagree with the reply above, and I think the disagreement is substantive rather…
An appeal that succeeded, with the letter structure — the long version Replied, post #129 · Access › Insurance & coverage · 20 Jun 2026 · 3 likes post #128 is right about the mechanism and I think understates the practical bit. Out-of-pocket costs: if insurance is not covering it, asking about patient assistance…
Tracking a shortage from primary sources rather than rumour Replied, post #54 · Access › Shortages · 16 Jun 2026 · 33 likes On post #50 — agreed on the reasoning, with one qualification. Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly…
Racemisation and why it is invisible to a mass measurement Replied, post #114 · Analytics › Impurities & related substances · 14 Jun 2026 · 0 likes Disulfide formation: if a peptide contains cysteine, it can form disulfide bonds with itself or with other molecules. Under oxidising conditions multiple species…
Comparing prices across jurisdictions without misleading yourself Replied, post #79 · Access › Pricing · 14 Jun 2026 · 10 likes post #78 answers the question as asked. The question underneath it is different. Pharmacy acquisition cost: a pharmacy pays less than the patient pays, even at…
Why fasting instructions for oral semaglutide are not optional advice Replied, post #39 · Compounds › Oral incretins · 12 Jun 2026 · 11 likes This follows post #36 rather than contradicting it. For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add…
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #79 · Practice › Storage & stability · 7 Jun 2026 · 6 likes Container choice matters: the material of the vial, the rubber closure, the fill volume all affect how quickly the contents degrade. Smaller fill volumes lose less to…
Carryover and the ghost peak from last week's standard — what changed since Replied, post #11 · Analytics › HPLC & UHPLC · 6 Jun 2026 · 0 likes post #10 answers the question as asked. The question underneath it is different. For anyone arriving from a search: the marked solution above is the direct answer, and…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #78 · Sourcing › Logistics · 23 May 2026 · 22 likes Cold packs and temperature control: inclusion of cold packs at despatch is standard. Whether they maintain temperature through transit depends on journey duration and…
Journal club: semaglutide in MASH, and surrogate endpoints Replied, post #19 · Evidence › Journal club · 17 May 2026 · 10 likes I read post #17 twice before replying, because I had assumed the opposite. Having read the exchange above, I think I was wrong earlier in this topic and I want to say…
Run-in periods and the population they select Replied, post #115 · Evidence › Trials · 11 May 2026 · 20 likes Absolute numbers, not just relative: a 30% relative reduction tells you the ratio but not the practical magnitude. The event rate in each arm and the difference between…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #47 · Evidence › Preprints · 7 May 2026 · 13 likes Picking up post #44: that is the part I would want checked first. Unrefereed work is not worthless. A great deal of it survives review substantially unchanged. It is…
Revisiting: Absolute versus relative contraindications Replied, post #80 · Safety › Contraindications · 2 May 2026 · 30 likes Worth separating two things that post #76 runs together. History of pancreatitis: these compounds can rarely trigger pancreatitis. History of pancreatitis increases…
Amylin receptor signalling and satiety — what changed since Replied, post #70 · Pharmacology › Receptor biology · 29 Apr 2026 · 0 likes On post #66 — agreed on the reasoning, with one qualification. GLP-1 receptor signalling: the GLP-1 receptor is expressed on beta cells (insulin secretion), on neurons…
Converting between mg/mL and units per dose, both directions — the long version Replied, post #42 · Practice › Reconstitution · 20 Apr 2026 · 19 likes Picking up post #39: that is the part I would want checked first. How much of the diluent volume the powder itself displaces: for a small peptide vial, the powder…
Adducts: sodium, potassium, and the peak you did not expect — does this still hold? Replied, post #115 · Analytics › Mass spectrometry · 19 Apr 2026 · 0 likes Quantitation by MS: most quantitation is done by LC-UV detection at 214 nm, not by MS, because extinction coefficients are better known. MS can quantify if an internal…
Reference intervals: how they are constructed and why one in twenty flags Replied, post #83 · Clinical › Bloodwork · 19 Apr 2026 · 17 likes Fasting state: some lab tests require fasting; others do not. Lipids on a fasting draw differ from lipids on a fed draw. Always note whether the test was fasting when…
Reference intervals: how they are constructed and why one in twenty flags Replied, post #68 · Clinical › Bloodwork · 21 Mar 2026 · 1 like Lipid panel interpretation: total, LDL, HDL, triglycerides all on one panel. Reading them together is more informative than reading one value in isolation. An elevated…
Adsorptive losses at low concentration, and why dilute solutions are fragile Replied, post #20 · Practice › Storage & stability · 18 Mar 2026 · 0 likes Coming back to post #18, because the follow-up matters more than the original answer. Temperature excursions: if a vial sat at room temperature for a time, the question…
Grapefruit: why this class is not the class that cares Replied, post #25 · Practice › Interactions · 9 Mar 2026 · 17 likes Separation timing versus clinically important interaction: a separation timing inconvenience (taking one medication 2 hours before or after another) is not the same as…
The "under review" status pill and when a moderator applies it Replied, post #7 · Evidence › Preprints · 4 Mar 2026 · 8 likes This follows post #4 rather than contradicting it. I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The…
The lowest dose that does anything: is that a real question? Replied, post #32 · Practice › Dosing & titration · 3 Mar 2026 · 12 likes Titrating on tolerability rather than on the calendar: some people escalate when they tolerate a dose well, others escalate on the prescribed schedule regardless. The…
Is "synergy" the right word for the combination data? Replied, post #5 · Compounds › Cagrilintide & amylin analogues · 27 Feb 2026 · 27 likes Gastric emptying: both amylin and GLP-1 slow it, through partly overlapping but distinct mechanisms. Whether the slowing at a higher magnitude produces disproportionate…
Second pass at: Where impurities in solid-phase peptide synthesis come from Replied, post #14 · Analytics › Impurities & related substances · 21 Feb 2026 · 0 likes Acetate content: counter-ion content. Trifluoroacetate or acetate from the salt form of the peptide. Affects mass calculations and should be stated on a complete…
Chain of custody for a sample you posted yourself — one year on Replied, post #5 · Sourcing › Independent verification · 20 Feb 2026 · 4 likes Janoshik Analytical: chromatographic purity and mass-spectrometric identity on submitted samples. Reports are issued with the analytical method stated and a…
[2026 update] A rising related-substance total over six months: degradation or method… Replied, post #73 · Analytics › Impurities & related substances · 20 Feb 2026 · 0 likes Dimer and higher-order multimers: two or more peptide molecules bonded together. They appear at double the mass and higher. They may or may not separate from the…
Reading an interaction checker output critically Replied, post #124 · Practice › Interactions · 19 Feb 2026 · 7 likes This follows post #121 rather than contradicting it. Insulin interaction: semaglutide and tirzepatide are not contraindicated with insulin but the combination carries…
A site rotation scheme that is easy enough to actually follow Replied, post #3 · Practice › Administration · 9 Feb 2026 · 3 likes Pinch or no pinch: the decision depends on needle length and on your own anatomy. A longer needle (8 mm and up) reaches subcutaneous tissue easily without a pinch. A…
Stability of BPC-157 in solution: what has been measured — one year on Replied, post #7 · Compounds › Repair & healing peptides · 7 Feb 2026 · 7 likes post #6 is right about the mechanism and I think understates the practical bit. Oral versus injected administration claims for BPC-157: the preclinical work studied…
Dizziness on standing and the electrolyte explanation Replied, post #5 · Practice › Side effects · 31 Jan 2026 · 0 likes Gallbladder complications: rapid weight loss increases the risk of gallstone formation. The mechanism is not specific to this drug class. The risk is greatest in the…
Search filters: what is missing Replied, post #21 · Meta › Site feedback · 26 Jan 2026 · 1 like Search and findability: if you searched for something and did not find it, report what you searched for and what you expected to find. That helps improve indexing and…
When your prescriber and the evidence disagree Replied, post #3 · Clinical › Prescriber conversations · 22 Jan 2026 · 4 likes Asking about monitoring: understand what lab work will be done, how often, and what you will be monitored for. A plan is better than ad-hoc monitoring.
Second pass at: Metformin co-administration and additive GI effects Replied, post #37 · Practice › Interactions · 22 Jan 2026 · 21 likes On post #33 — agreed on the reasoning, with one qualification. Anticoagulants: no direct interaction with the compounds in this class. Weight loss and body composition…
Follow-up: A supplier that answers analytical questions with restated claims Replied, post #58 · Sourcing › Red flags · 21 Jan 2026 · 0 likes Exaggerated claims without documentation: every compound has limits. No peptide is "100% pure" because purity is measured to finite precision. A supplier claiming…
Distinguishing expected GI effects from something that needs urgent attention Replied, post #40 · Practice › Side effects · 6 Jan 2026 · 7 likes I read post #38 twice before replying, because I had assumed the opposite. Practical note that does not fit anywhere else. Whatever you conclude from this topic, write…
A parcel stationary at a customs facility for nine days Replied, post #17 · Sourcing › Logistics · 3 Jan 2026 · 10 likes Reshipment after seizure: if a parcel is seized, some suppliers will reship; others will not. That is a supplier choice and should be understood before ordering in a…
Why oral semaglutide needs an absorption enhancer at all Replied, post #62 · Compounds › Oral incretins · 27 Dec 2025 · 1 like Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
Reading U-100 graduations, with a conversion table Replied, post #3 · Devices › Syringes & needles · 15 Dec 2025 · 23 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
Documentation that appears only after payment Replied, post #106 · Sourcing › Red flags · 14 Dec 2025 · 29 likes Inability to trace lots: if you ask "where was this synthesised, by whom, under what conditions" and cannot get a clear answer, that is a red flag. Traceability is not…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one Replied, post #70 · Compounds › Oral incretins · 1 Dec 2025 · 0 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
What a good consultation looks like from the other side Started this topic · Clinical › Prescriber conversations · 23 Nov 2025 · 23 likes What a good consultation looks like from the other side — that is the question, and I have not found it answered plainly anywhere I have looked. Asking about a…
Second pass at: Metformin co-administration and additive GI effects Replied, post #6 · Practice › Interactions · 14 Nov 2025 · 28 likes Coming back to post #4, because the follow-up matters more than the original answer. Metformin: commonly co-administered and relevant to gastrointestinal tolerability.…
Coming back to: The SOUL trial and oral semaglutide cardiovascular outcomes Replied, post #59 · Compounds › Oral incretins · 9 Nov 2025 · 3 likes This follows post #56 rather than contradicting it. Fasting instructions are not optional advice. Taking the tablet with food or with more than a sip of water…
Revisiting: Why tirzepatide titration schedules have more steps than semaglutide's Replied, post #18 · Compounds › Tirzepatide · 8 Nov 2025 · 0 likes Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own…
"Greater than or equal to 99%" as a specification rather than a result Replied, post #65 · Analytics › COA interpretation · 5 Nov 2025 · 2 likes When a document puts the specification in the result column, it has told you the release criterion, not the measurement. Those are different claims and the second is…
Follow-up: Retatrutide phase 2 in type 2 diabetes: the Lancet paper Replied, post #5 · Compounds › Retatrutide · 30 Oct 2025 · 29 likes Worth separating two things that the opening post runs together. TRIUMPH is phase 3 and it is ongoing. No phase 3 results exist. Nothing should be attributed to TRIUMPH…
A 40-week log with the measurement method stated Replied, post #79 · Outcomes › Progress reports · 27 Oct 2025 · 0 likes Medication changes: escalating dose, or adding or removing other medications, can affect the rate of weight loss. Documenting medication changes alongside weight makes…
"Should I double up?" — answered once, at length, calmly Replied, post #26 · Practice › Administration · 23 Oct 2025 · 0 likes Pinch or no pinch: the decision depends on needle length and on your own anatomy. A longer needle (8 mm and up) reaches subcutaneous tissue easily without a pinch. A…
Realistic expectations for strength while losing weight quickly Replied, post #30 · Nutrition & Training › Resistance training · 22 Oct 2025 · 9 likes Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can…
Second pass at: Journal club: STEP 4 and what a withdrawal design can prove Replied, post #81 · Evidence › Journal club · 20 Oct 2025 · 11 likes Session format: read the paper before posting. The discussion is much better when everyone has. Start with the estimand and population, then methods, then results, then…
Discussing something you have already been doing Replied, post #15 · Clinical › Prescriber conversations · 9 Oct 2025 · 24 likes How to ask for what you need: rather than "should I take this", frame it as "I understand the evidence for this shows X benefit in people with my condition; would it be…
Documentation that appears only after payment Replied, post #42 · Sourcing › Red flags · 6 Oct 2025 · 0 likes Picking up post #39: that is the part I would want checked first. Rapid supplier turnover: a supplier that changes corporate structure, domain name, or contact…
Revisiting: Review: an evidence digest and the citation check that delayed it Replied, post #19 · Documentation › Doc review · 6 Oct 2025 · 15 likes Picking up post #16: that is the part I would want checked first. New maintainer recruitment: if a page's maintainer is inactive and updates are needed, suggesting a…
Micronutrient adequacy at low total intake — does this still hold? Replied, post #10 · Nutrition & Training › Protein & intake · 5 Oct 2025 · 3 likes Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing. The correction was fair and I had…
How to read a forest plot, properly, from scratch Replied, post #31 · Evidence › Trials · 23 Sep 2025 · 3 likes Multiplicity and multiple comparisons: if a trial tests many hypotheses, the chance of a false positive on at least one by random chance increases. This is why…
A parcel that arrived warm: a decision process, not a verdict Replied, post #40 · Practice › Storage & stability · 16 Sep 2025 · 13 likes Published stability data applies specifically to the formulation studied, under the specific conditions stated. It does not automatically transfer to something…
Comparing two chromatograms from different laboratories, properly Replied, post #10 · Analytics › HPLC & UHPLC · 11 Sep 2025 · 3 likes On post #6 — agreed on the reasoning, with one qualification. Column chemistry and particle size: smaller particles (1.7 μm) give better resolution and higher…
What a purity-only report leaves out Replied, post #10 · Sourcing › Independent verification · 9 Sep 2025 · 2 likes On post #6 — agreed on the reasoning, with one qualification. Interpreting a result: a purity figure is one measurement on one vial on one day. Agreement across two…
What a 2 ppm match establishes, and what it does not Replied, post #47 · Analytics › Mass spectrometry · 2 Sep 2025 · 15 likes Picking up post #44: that is the part I would want checked first. Common adducts: sodium adds ≈22, potassium adds ≈38 compared to hydrogen. A [M+Na]+ peak is common and…
Airline travel with a temperature-sensitive injectable — what changed since Replied, post #70 · Devices › Cold chain · 31 Aug 2025 · 0 likes Shipping container and cold packs: reputable suppliers use insulated containers with cold packs designed to arrive cool. Checking on arrival that cold packs are still…
Why the timeline is on the right and not the left Replied, post #60 · Meta › Site feedback · 27 Aug 2025 · 16 likes Picking up post #57: that is the part I would want checked first. Performance: if pages are slow to load, timeouts occur, or the site is unresponsive, that is worth…
[2026 update] Journal club: is percentage weight change the right endpoint? Replied, post #111 · Evidence › Journal club · 25 Aug 2025 · 7 likes SELECT (N Engl J Med 2023): Semaglutide cardiovascular outcomes without diabetes. The first outcome trial in people without diabetes, which decoupled the cardiovascular…
[2026 update] Journal club: is percentage weight change the right endpoint? Replied, post #99 · Evidence › Journal club · 24 Aug 2025 · 3 likes Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can…
A ten-fold dose error caught before injection — one year on Replied, post #90 · Devices › Syringes & needles · 3 Aug 2025 · 0 likes Fixed versus detachable needles: insulin syringes usually have fixed needles (no dead volume loss to the hub). Luer-lock syringes use detachable needles (more dead…
Travel coolers and how long they really hold Replied, post #35 · Devices › Cold chain · 3 Aug 2025 · 0 likes I read post #33 twice before replying, because I had assumed the opposite. Temperature excursions: brief excursions above 8 °C are tolerable for most compounds. Hours…
[2026 update] Reverting an edit that had no revision note Replied, post #8 · Meta › Wiki maintenance · 28 Jul 2025 · 31 likes post #7 answers the question as asked. The question underneath it is different. Cross-referencing: if two pages should reference each other but do not, suggesting the…
Reverting an edit that had no revision note Replied, post #20 · Meta › Wiki maintenance · 25 Jul 2025 · 5 likes Revision disputes: if you disagree with an edit a maintainer made, discussing it here invites resolution rather than conflict.
A field-by-field walk through a certificate of analysis Replied, post #121 · Analytics › COA interpretation · 17 Jul 2025 · 0 likes Coming back to post #119, because the follow-up matters more than the original answer. Endotoxin testing is separate: a certificate of purity says nothing about…
Journal club: the CagriSema phase 2 combination paper — a second dataset Replied, post #71 · Evidence › Journal club · 7 Jul 2025 · 11 likes post #70 answers the question as asked. The question underneath it is different. SURMOUNT-OSA (N Engl J Med 2024): Tirzepatide in obstructive sleep apnoea, using an…
[2026 update] Cardiovascular risk: reading the outcome trials as a set Replied, post #49 · Clinical › Comorbidities · 10 Jun 2025 · 15 likes Hepatic steatosis and MASH: a phase 2 trial in semaglutide for steatohepatitis showed resolution was more frequent on treatment. Histological resolution is a surrogate…
Ipamorelin selectivity claims and where they came from Replied, post #41 · Compounds › Secretagogues & GH axis · 26 May 2025 · 0 likes Evidence quality in the secretagogue literature is honestly weaker than in the incretin literature. Large randomised controlled trials are rare. Most evidence is…
Cost per milligram, computed honestly across formats — the long version Replied, post #77 · Access › Pricing · 25 Apr 2025 · 13 likes post #76 answers the question as asked. The question underneath it is different. Biosimilars and future generics: as patents expire, biosimilar and generic versions…
Which panel is worth repeating and which is worth ignoring Replied, post #8 · Clinical › Bloodwork · 24 Apr 2025 · 1 like Fasting state: some lab tests require fasting; others do not. Lipids on a fasting draw differ from lipids on a fed draw. Always note whether the test was fasting when…
Delayed gastric emptying and oral medication absorption: which drugs matter Replied, post #27 · Practice › Interactions · 27 Mar 2025 · 5 likes This follows post #24 rather than contradicting it. For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add…
Journal club: SURMOUNT-OSA and a hard endpoint in a soft field Replied, post #33 · Evidence › Journal club · 9 Mar 2025 · 27 likes Coming back to post #31, because the follow-up matters more than the original answer. TRIUMPH (ongoing): Retatrutide phase 3. No results yet. Nothing should be…
The report format the maintainers ask for, and why each field is there — what changed… Replied, post #12 · Sourcing › Vendor reports · 27 Feb 2025 · 26 likes On post #8 — agreed on the reasoning, with one qualification. Multiple services on one lot: agreement across two independent laboratories is stronger than a high number…
Semaglutide half-life: where the 165 to 184 hour figure comes from — what changed since Replied, post #103 · Compounds › Semaglutide · 9 Feb 2025 · 0 likes Gastric emptying delay is the mechanism behind most of the gastrointestinal side effects. Slowing the stomach empties it feeds less food into the intestines at a time,…
Tirzepatide in type 2 diabetes: the SURPASS programme, summarised honestly Replied, post #18 · Compounds › Tirzepatide · 9 Feb 2025 · 0 likes The GIP component: GIP receptor agonism is thought to amplify the GLP-1 effect on satiety and energy expenditure, but how much of tirzepatide's effect is that and how…
Oral semaglutide bioavailability and its variability between people — a second dataset Replied, post #134 · Compounds › Oral incretins · 29 Dec 2024 · 0 likes Fasting instructions are not optional advice. Taking the tablet with food or with more than a sip of water measurably reduces absorption. This is the one compound in…
Coming back to: Preparing for an appointment: one page, three questions Replied, post #126 · Clinical › Prescriber conversations · 19 Dec 2024 · 0 likes Asking about monitoring: understand what lab work will be done, how often, and what you will be monitored for. A plan is better than ad-hoc monitoring.
[2026 update] New subcategory: rationale and scope Replied, post #7 · Meta › Announcements · 16 Nov 2024 · 0 likes Questions welcomed: if an announcement is unclear, asking for clarification is welcome. Staff will explain their reasoning.
Fixed versus detachable needles: the trade-offs Replied, post #6 · marked as the solution · Devices › Syringes & needles · 15 Nov 2024 · 7 likes On post #2 — agreed on the reasoning, with one qualification. Dead volume: residual liquid in the hub and needle after withdrawal. Typical residual is 0.01 to 0.02 mL…
Second pass at: Reimbursement variation across member states Replied, post #25 · Regional › European Union · 28 Oct 2024 · 21 likes post #24 is right about the mechanism and I think understates the practical bit. EMA is the regulator with national implementation. Licensed incretin analogues are…
Second pass at: Multiplicity when you track fifteen variables Started this topic · Research Methods › Statistics · 20 Oct 2024 · 60 likes Posting this under the heading it deserves: Second pass at: Multiplicity when you track fifteen variables Everything below is what sits behind that. I have seen SCALE (…
Blind submission and why it changes minds Replied, post #48 · Sourcing › Independent verification · 29 Aug 2024 · 0 likes Picking up post #45: that is the part I would want checked first. Medutest: combined purity and identity reporting. Appears throughout vendor documentation. Where a…
High-resolution MS on aggregates and what it can see — one year on Replied, post #23 · Analytics › Mass spectrometry · 14 Aug 2024 · 0 likes What mass accuracy establishes: the measured mass is consistent with a specific composition. What it does not establish: purity, sequence order, stereochemistry, or the…
The mass-error checker and its intended scope Replied, post #165 · Data & Tools › Calculators · 29 Jul 2024 · 5 likes Mass error checking: enter your observed mass and theoretical mass and check whether the difference in ppm is within reasonable bounds for your instrument. Useful…
Oral contraceptives and delayed emptying: what the data shows Replied, post #49 · Practice › Interactions · 15 Jul 2024 · 7 likes Thyroid medications: semaglutide is associated with a slowing of gastric emptying, which might affect thyroid medication absorption if they are taken very close…
Splitting a weekly dose in two: the pharmacokinetic argument against — the long version Replied, post #139 · Practice › Dosing & titration · 10 Jul 2024 · 4 likes post #138 is right about the mechanism and I think understates the practical bit. Stepping down deliberately: the withdrawal trials show that stopping is followed by…